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US 2011/0215150 A1Published application
Biometric Sensor With Delay Layer
AssigneeUltra-Scan Corporation
InventorsJohn K. Schneider, Jack C. Kitchens
Life of this patent
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Abstract
A biometric scanner is described and claimed. The scanner has a platen, an ultrasonic plane wave generator, an ultrasonic detector, and a delay layer residing between the generator and the detector.
Claims25
A biometric scanner, comprising:
- a platen;
- an ultrasonic plane wave generator;
- an ultrasonic detector;
- and
- a delay layer residing between the generator and the detector.
2 more elements
Dependencies are inferred from the claim text.